HPE Community
Aruba & ProVision-based
1752464 Members
5841 Online
108788 Solutions
New Discussion

Re: DHCP packets are dropped due to high packet rate

 
TerjeAFK
Respected Contributor

‎04-11-2016 01:41 AM

‎04-11-2016 01:41 AM

DHCP packets are dropped due to high packet rate

Hi all.

The last few days the following message has started appearing in the logs of our two E3800 distribution switches:

W 04/11/16 08:22:33 02698 dhcp-snoop: backplane: DHCP packets are dropped at port 25 due to high packet rate.

Port 25 is a 10G connection to our core switch. Has anyone come across this before? The switches are running software KA.16.01.0004

 

0 Kudos
1 REPLY 1
Michael Patmon
Trusted Contributor

‎04-15-2016 05:13 PM

‎04-15-2016 05:13 PM

Re: DHCP packets are dropped due to high packet rate

Hello.  There is a 100 pkts/sec rate-limit on DHCP packets with DHCP-snooping enabled, it's a DoS protection mechanism.  It's been in place for some time however the log message is new for X.16.01. 

0 Kudos
The opinions expressed above are the personal opinions of the authors, not of Hewlett Packard Enterprise. By using this site, you accept the Terms of Use and Rules of Participation.